{"id":11430,"date":"2024-11-17T22:18:54","date_gmt":"2024-11-17T14:18:54","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=11430"},"modified":"2024-11-17T22:18:54","modified_gmt":"2024-11-17T14:18:54","slug":"js-selectionchange-event","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2024\/11\/js-selectionchange-event\/","title":{"rendered":"JS\u6587\u672c\u9009\u533a\u53d8\u5316selectionchange\u4e8b\u4ef6\u5b9e\u8df5\u5c0f\u8bb0"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=11430\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=11430<\/a><br \/>\n\u672c\u6587\u53ef\u5168\u6587\u8f6c\u8f7d\uff0c\u72ec\u7acb\u57df\u540d\u4e2a\u4eba\u7f51\u7ad9\u65e0\u9700\u6388\u6743\uff0c\u4f46\u9700\u8981\u4fdd\u7559\u539f\u4f5c\u8005\u3001\u51fa\u5904\u4ee5\u53ca\u6587\u4e2d\u94fe\u63a5\uff0c\u4efb\u4f55\u7f51\u7ad9\u5747\u53ef\u6458\u8981\u805a\u5408\uff0c\u5546\u7528\u8bf7\u8054\u7cfb\u6388\u6743\u3002<\/p>\n<p><script>window.wxShareImgUrl = 'https:\/\/www.zhangxinxu.com\/study\/image\/share\/202411-selection-change.png';<\/script><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202411\/selectionchange-cover.png\" width=\"416\" height=\"283\" alt=\"selectionchange\u4e8b\u4ef6\u6587\u7ae0\u5c01\u9762\u5360\u4f4d\u56fe\" class=\"alignright clip thumb size-medium\" \/><\/p>\n<p>2\u5e74\u524d\u6709\u4e2a\u4e2d\u53f0\u6587\u6863\u4ea7\u54c1\u6709\u4e2a\u5212\u8bcd\u8bc4\u8bba\u7684\u529f\u80fd\uff0c\u90a3\u65f6\u5019\u8fd8\u5199\u4e86\u7bc7\u6587\u7ae0\u4ecb\u7ecd\u4e86\u76f8\u5173\u7684\u6280\u672f\u5b9e\u73b0\uff0c\u53c2\u89c1\uff1a\u201c<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/2022\/09\/js-selection-range\/\">\u5212\u8bcd\u8bc4\u8bba\u4e0eRange\u5f00\u53d1\u82e5\u5e72\u7ecf\u9a8c\u5206\u4eab<\/a>\u201d<\/p>\n<p>\u4e00\u76f4\u8fd0\u884c\u7684\u597d\u597d\u7684\u3002<\/p>\n<p>\u7a81\u7136\uff0c\u5c31\u5728\u6700\u8fd1\uff0c\u8001\u677f\u63d0\u4e86\u4e00\u5634\uff0c\u8fd9\u624b\u673a\u4e0a\u600e\u4e48\u6ca1\u6cd5\u5212\u8bcd\u8bc4\u8bba\u3002<\/p>\n<p>\u597d\u4e86\uff0c\u9700\u6c42\u5c31\u6765\u4e86\u3002<\/p>\n<p>\u5f53\u65f6\u624b\u673a\u4e0a\u5185\u7f6e\u7684\u590d\u5236\u3001\u7ffb\u8bd1\u7b49tips\u7b49\u4e0e\u5212\u8bcd\u8bc4\u8bba\u5c0f\u6309\u94ae\u4f1a\u6709\u51b2\u7a81\uff0c\u4ee5\u53ca\u5f00\u53d1\u6210\u672c\u7b49\u539f\u56e0\uff08\u53f0\u5f0f\u673a\u6a21\u62dftouch\u957f\u6309\u6709\u4e9b\u9ebb\u70e6\uff09\uff0c\u5c31\u6ca1\u505a\u3002<\/p>\n<p>\u7b80\u5355\u7814\u7a76\u4e86\u4e0b\uff0c\u4e8b\u4ef6\u662f\u901a\u7528\u7684\uff0c\u5c31\u662f<code>selectionchange<\/code>\u4e8b\u4ef6\u3002<\/p>\n<h3>\u4e00\u3001\u5173\u4e8eselectionchange\u4e8b\u4ef6<\/h3>\n<p>\u6839\u636e\u6211\u7684\u6d4b\u8bd5\uff0c<code>selectionchange<\/code>\u53d1\u751f\u5728\u9009\u533a\u8303\u56f4\u53d1\u751f\u53d8\u5316\u7684\u65f6\u5019\uff0c\u5047\u5982\u4f60\u62d6\u62fd\u9009\u533a\u8303\u56f4\u7684\u201c\u68d2\u68d2\u5b50\u201d\u6539\u53d8\u6587\u672c\u7684\u9009\u4e2d\u8303\u56f4\uff0c\u6b64\u4e8b\u4ef6\u662f\u4e0d\u65ad\u89e6\u53d1\u7684\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202411\/2024-11-17_182955.png\" width=\"392\" height=\"170\" alt=\"\u62d6\u62fd\u7684\u68d2\u68d2\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u4f7f\u7528\u793a\u610f\uff1a<\/p>\n<pre>\u5c1d\u8bd5\u9009\u4e2d\u8fd9\u6bb5\u6587\u5b57\uff1a\u300aHTML\u5e76\u4e0d\u7b80\u5355\u300b\u662f\u76ee\u524d\u5e02\u9762\u4e0a...\r\n&lt;p id=\"result\"&gt;&lt;\/p&gt;<\/pre>\n<pre>document.addEventListener('selectionchange', function () {\r\n    const selection = document.getSelection();\r\n    result.textContent = selection.toString().trim();    \r\n});<\/pre>\n<p>\u6b64\u65f6\uff0c\u6211\u4eec\u9009\u4e2d\u4efb\u4f55\u9009\u533a\uff0c<code>p#result<\/code>\u5143\u7d20\u5c31\u4f1a\u663e\u793a\u9009\u4e2d\u7684\u6587\u672c\u5185\u5bb9\uff0c\u622a\u56fe\u793a\u610f\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202411\/2024-11-17_195336.png\" width=\"492\" height=\"201\" alt=\"\u9009\u4e2d\u6587\u5b57\u663e\u793a\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u8fd9\u4e2ademo\u624b\u673a\u4e5f\u53ef\u4ee5\u4f53\u9a8c\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/study\/202411\/js-selectionchange-event-demo.php\" rel=\"noopener\" target=\"_blank\">JS selectionchange\u4e8b\u4ef6\u4f53\u9a8cdemo<\/a><\/p>\n<h3>\u4e8c\u3001\u9009\u533a\u6267\u884c\u65f6\u673a\u7684\u533a\u522b<\/h3>\n<p>\u5728PC\u7aef\u548c\u79fb\u52a8\u7aef\uff0c\u7531\u4e8e\u9009\u533a\u6d88\u5931\u7684\u65f6\u673a\u662f\u6709\u533a\u522b\u7684\uff0c\u56e0\u6b64\uff0c\u5728\u4ea4\u4e92\u5904\u7406\u4e0a\u4f1a\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u6211\u4eec\u9009\u4e2d\u9009\u533a\uff0c\u60ac\u6d6e\u4e00\u4e2a\u6309\u94ae\uff0c\u70b9\u51fb\u6b64\u6309\u94ae\uff0c\u4f7f\u7528<code>surroundContents()<\/code> API\u5305\u88f9\u9009\u4e2d\u7684\u6587\u5b57\uff0c\u5728PC\u7aef\uff0c\u6211\u4eec\u53ef\u4ee5\u7ed9\u6309\u94ae\u4f7f\u7528click\u4e8b\u4ef6\u3002<\/p>\n<p>\u56e0\u4e3a\u5728PC\u7aef\uff08Android\u597d\u50cf\u4e5f\u662f\uff09\uff0c\u6587\u5b57\u9009\u533a\u7684\u6d88\u5931\u662f\u5728click\u4e8b\u4ef6\u4e4b\u540e\u3002<\/p>\n<p>\u4f46\u662f\u5728iOS\u7aef\uff0c\u4e0d\u77e5\u9053\u662f\u4e0d\u662f\u5ba2\u6237\u7aefAPP\u7684\u95ee\u9898\uff0c\u9009\u533a\u7684\u6d88\u5931\u5728click\u4e8b\u4ef6\u4e4b\u524d\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u5728\u5b9e\u9645\u5904\u7406\u7684\u65f6\u5019\uff0c\u6309\u94ae\u7684\u70b9\u51fb\u4e8b\u4ef6\u9700\u8981\u4f7f\u7528touchstart\u5904\u7406\u624d\u884c\u3002<\/p>\n<p>\u8fd9\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u6267\u884c\u7ec6\u8282\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u505a\u7c7b\u4f3c\u9700\u6c42\u7684\u540c\u884c\u3002<\/p>\n<h3>\u4e09\u3001selectionchange\u7ed1\u5b9a\u5143\u7d20\u548c\u4e8b\u4ef6\u5bf9\u8c61<\/h3>\n<p><code>selectionchange<\/code>\u4e8b\u4ef6\u53ea\u80fd\u7ed1\u5b9a\u5728document\u4e0a\uff0c\u4ee5\u53ca\u539f\u751f\u7684\u53ef\u8f93\u5165\u5143\u7d20\u4e0a\uff0c\u662f\u4e0d\u80fd\u7ed1\u5b9a\u5728\u666e\u901a\u5143\u7d20\u4e4b\u4e0a\u7684\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u4e0b\u9762\u7684JS\u4ee3\u7801\u662f\u4e0d\u4f1a\u89e6\u53d1\u4efb\u4f55\u884c\u4e3a\u6267\u884c\u7684\uff1a<\/p>\n<pre>document.body.addEventListener('selectionchange', function () {\r\n    \/\/ \u4e0d\u4f1a\u89e6\u53d1\u6267\u884c    \r\n});<\/pre>\n<p>\u4f46\u5982\u679c\u662f\u8f93\u5165\u6846\uff0c\u4f8b\u5982<code>&lt;input&gt;<\/code>\u6216\u8005<code>&lt;textarea&gt;<\/code>\u5219\u662f\u6ca1\u95ee\u9898\u7684\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>input.addEventListener('selectionchange', function () {\r\n    \/\/ \u53ef\u4ee5\u6267\u884c    \r\n});<\/pre>\n<p>\u90a3\u5982\u679c\u662f\u4e00\u4e2a\u666e\u901a\u7684\u5143\u7d20\uff0c\u4f46\u662f\u8bbe\u7f6e\u4e86<code>contenteditable=\"true\"<\/code>\uff0c\u53d8\u5f97\u53ef\u8f93\u5165\uff0c\u90a3\u8fd8\u652f\u6301<code>'selectionchange'<\/code>\u5417\uff1f<\/p>\n<p>\u6839\u636e\u6211\u7684\u6d4b\u8bd5\uff0c\u662f\u4e0d\u652f\u6301\u7684\u3002<\/p>\n<h4>\u4e8b\u4ef6\u5bf9\u8c61<\/h4>\n<p>\u76f8\u6bd4\u4f20\u7edf\u7684\u4e8b\u4ef6\uff0c<code>selectionchange<\/code>\u4e8b\u4ef6\u7684event\u5bf9\u8c61\u4f1a\u6709\u5f88\u591a\u7f3a\u5931\uff0c\u4f8b\u5982\u5750\u6807\u4f4d\u7f6e\u7b49\u4fe1\u606f\uff0c\u4ee5Chrome\u6d4f\u89c8\u5668\u4e3e\u4f8b\uff0c\u652f\u6301\u7684\u5c5e\u6027\u89c1\u5982\u4e0b\u622a\u56fe\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202411\/2024-11-17_215604.png\" width=\"224\" height=\"293\" alt=\"\u4e8b\u4ef6\u5c5e\u6027\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u56e0\u6b64\uff0c\u5982\u679c\u5e0c\u671b\u5143\u7d20\u76f8\u5bf9\u4e8e\u9009\u533a\u5b9a\u4f4d\uff0cevent\u5bf9\u8c61\u662f\u5e2e\u4e0d\u4e0a\u4efb\u4f55\u5fd9\u7684\uff0c\u8fd8\u662f\u9700\u8981\u4f7f\u7528\u9009\u533a\u672c\u8eab\u7684API\u624d\u884c\uff0c\u5177\u4f53\u89c1\u672c\u6587\u4e00\u5f00\u59cb\u63d0\u5230\u7684\u90a3\u7bc7\u6587\u7ae0\u3002<\/p>\n<h3>\u56db\u3001\u5176\u4ed6\u5c31\u6ca1\u6709\u4ec0\u4e48\u4e86<\/h3>\n<p>\u5176\u4ed6\u5c31\u6ca1\u4ec0\u4e48\u4e86\uff0c\u6bd4\u8f83\u51b7\u95e8\u7684\u4e00\u4e2aJS DOM\u4e8b\u4ef6API\uff0c\u4f46\u6211\u4f7f\u7528\u4e0b\u6765\uff0c\u8fd8\u633a\u597d\u7528\u7684\uff0c\u6bd4\u8f83\u7a33\u5065\uff0c\u5176\u517c\u5bb9\u6027\u4e5f\u4e0d\u9519\uff0c\u5982\u4e0b\u622a\u56fe\u6240\u793a\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202411\/2024-11-17_220022.png\" width=\"636\" height=\"229\" alt=\"selectionchange\u4e8b\u4ef6\u7684\u517c\u5bb9\u6027\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u5e0c\u671b\u53ef\u4ee5\u5e2e\u5230\u8bf8\u4f4d\u9053\u53cb\uff0c\u54ce\u5440\uff0c\u5634\u74e2\u4e86\uff0c\u540c\u884c\uff0c\u884c\u53cb\uff0c\u770b\u5236\u4f5c\u7cbe\u826f\u7684\u97e9\u8dd1\u8dd1\u50bb\u5c4c\u6f2b\u770b\u5f97\u6709\u4e9b\u8d70\u706b\u5165\u9b54\u4e86\uff0c\u54c8\u54c8\u54c8\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202411\/2024-11-17_221106.png\" width=\"240\" height=\"149\" alt=\"\u97e9\u8dd1\u8dd1\u622a\u56fe\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u4f1a\u7ecf\u5e38\u66f4\u65b0\u77e5\u8bc6\u70b9\u4ee5\u53ca\u4fee\u6b63\u4e00\u4e9b\u9519\u8bef\uff0c\u56e0\u6b64\u8f6c\u8f7d\u8bf7\u4fdd\u7559\u539f\u51fa\u5904\uff0c\u65b9\u4fbf\u6eaf\u6e90\uff0c\u907f\u514d\u9648\u65e7\u9519\u8bef\u77e5\u8bc6\u7684\u8bef\u5bfc\uff0c\u540c\u65f6\u6709\u66f4\u597d\u7684\u9605\u8bfb\u4f53\u9a8c\u3002<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=11430\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=11430<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202411\/selectionchange-cover.png\" width=\"160\" height=\"109\" alt=\"selectionchange\u4e8b\u4ef6\u6587\u7ae0\u5c01\u9762\u5360\u4f4d\u56fe\" class=\"alignright size-medium\" loading=\"lazy\" \/><\/p>\n<p>\u6700\u8fd1\u505a\u7684\u9879\u76ee\u7528\u5230\u4e86\u4e00\u4e2a\u6bd4\u8f83\u51b7\u95e8\u7684DOM\u4e8b\u4ef6API selectionchange\u4e8b\u4ef6\uff0c\u6587\u672c\u9009\u533a\u53d8\u5316\u65f6\u5019\u89e6\u53d1\uff0c\u7b80\u5355\u8bb0\u5f55\u4e0b\uff0c\u5e0c\u671b\u65e5\u540e\u53ef\u4ee5\u5e2e\u5230\u9047\u5230\u7c7b\u4f3c\u9700\u6c42\u7684\u540c\u884c\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1284],"tags":[870,182,587,499,2015,96],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/11430"}],"collection":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/comments?post=11430"}],"version-history":[{"count":5,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/11430\/revisions"}],"predecessor-version":[{"id":11442,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/11430\/revisions\/11442"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=11430"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=11430"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=11430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}